This G5 has been a bit of a hobby box, but I have used it as a ZFS backup server as well. The fastest MorphOS box one can get (Though moderately faster video cards are out there). FreeBSD 10.1 (ZFS on PPC!)
Here are the Specs:
-Dual G5 2.7ghz (no sign of coolant leakage)
-8GB ram
-60GB OWC Mercury SSD (Currently 1/2 MacOS 10.5, 1/2 MorphOS 3.7)
-DVD-R
-USB/firewire card
-Radeon 7000 PCI (64mb vram)
-Radeon X800 XT AGP (256mb vram)
no bluetooth/wifi onboard, but will include a USB wifi interface that has MacOS drivers available and work with FreeBSD 10.1 out-of-the-box. Case isn't perfect but isn't an eyesore.
So what do I want out of it?
-Quadra 800 (Maybe 840av?)
-Quadra 950
-Apple IIc+